Original Verse:
Proverbs Chapter 15 Verse 2The tongue of the wise commends knowledge, but the mouth of fools gush out folly.

Reference Verses:
Ecclesiastes Chapter 10 Verse 12The words of a wise man's mouth are gracious; but a fool is swallowed by his own lips.
Psalms Chapter 59 Verse 7Behold, they spew with their mouth. Swords are in their lips, "For," they say, "who hears us?"
Proverbs Chapter 15 Verse 7The lips of the wise spread knowledge; not so with the heart of fools.
Proverbs Chapter 15 Verse 28The heart of the righteous weighs answers, but the mouth of the wicked gushes out evil.